1673172425 has 6 divisors (see below), whose sum is σ = 2074733838. Its totient is φ = 1338537920.

The previous prime is 1673172407. The next prime is 1673172427. The reversal of 1673172425 is 5242713761.

It can be written as a sum of positive squares in 3 ways, for example, as 183521209 + 1489651216 = 13547^2 + 38596^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1673172425 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1673172427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33463424 + ... + 33463473.

It is an arithmetic number, because the mean of its divisors is an integer number (345788973).

Almost surely, 2^1673172425 is an apocalyptic number.

It is an amenable number.

1673172425 is a deficient number, since it is larger than the sum of its proper divisors (401561413).

1673172425 is an equidigital number, since it uses as much as digits as its factorization.

1673172425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66926907 (or 66926902 counting only the distinct ones).

The product of its digits is 70560, while the sum is 38.

The square root of 1673172425 is about 40904.4303835171. The cubic root of 1673172425 is about 1187.1717844538.

The spelling of 1673172425 in words is "one billion, six hundred seventy-three million, one hundred seventy-two thousand, four hundred twenty-five".